Journi

Journi is an AI trip planner built around an agentic itinerary engine that autonomously generates personalized, editable day-to-day travel plans.

A genuinely useful itinerary means pulling live data from several unrelated services — flights and hotels, weather, maps — and reasoning over all of it together, not just calling one API and templating the response.

Built an agentic engine on top of Grok's API using tool-use and function calling, orchestrating real-time calls across 3+ third-party services to assemble a full itinerary in under 30 seconds. A Redis-backed job queue handles the 10-30 second generation time asynchronously, so it never blocks the request cycle.

• →Agentic itinerary engine built on Grok's API using tool-use / function calling to orchestrate flights/hotels, weather, and maps data
• →Redis-backed job queue decoupling 10-30 second AI generation tasks from the request-response cycle
• →Stripe subscription billing with a 2-tier (free/paid) pricing model
• →Usage limits enforced at the API layer via Clerk-authenticated sessions

Coordinating multiple third-party API calls inside a single agentic reasoning loop, without the whole generation stalling if one service — say, weather — is slow to respond.

Offloading generation to a job queue means the frontend has to poll or subscribe for a result instead of getting an instant response — a deliberate trade of raw request latency for not blocking the server on a 30-second AI call.

Generates personalized, editable itineraries in under 30 seconds, with 5+ full trips generated to date.

Add real-time collaborative editing so a group can adjust a shared itinerary together instead of each person holding their own editable copy.